Piezoelectric polarization apparatus

Abstract

The invention provides a piezoelectric polarization apparatus. The piezoelectric polarization apparatus includes a high voltage supply, a multichannel current measuring apparatus, a polarization clamp, a heating device, a temperature control apparatus and a safety device, wherein the high voltage supply and the polarization clamp are connected to polarize the sample fixed on the polarization clamp; the multichannel current measuring apparatus and the polarization clamp are connected to measure the current of each polarization branch in the polarization clamp; the heating device is used for heating the polarization clamp; and the safety device is connected with the high voltage supply in series to control on / off of the high voltage supply. The piezoelectric polarization apparatus is safer to use by connecting a gate control switch with the high voltage supply, and the piezoelectric polarization apparatus is convenient to set up and use. Moreover, the piezoelectric polarization apparatus is convenient to find the broken-down ceramic chips during the polarization process by connecting the multichannel current measuring apparatus with the polarization clamp.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a piezoelectric polarization device. Background technique [0002] Piezoelectric ceramics, as functional materials that convert mechanical properties and electrical properties, are widely used in various fields such as communication, measurement, biology, and aerospace. For materials majors, the comprehensive experiment of piezoelectric materials is a better experimental project. As far as the experimental content is concerned, this experiment can master the whole process of ceramic design and ratio sintering, and its performance also includes the dielectric materials commonly used in materials. Electrical constant, loss, electric hysteresis loop, etc., and the instrument used in this experiment is simple, the preparation process only needs a high temperature furnace, the main part of performance testing d33, electromechanical coupling coefficient, dielectric constant, loss use...

AI Technical Summary

Problems solved by technology

According to the polarization conditions, the piezoelectric polarization equipment is required to be able to heat up to 200°C and perform temperature measurement, multiple samples can be polarized at the same time, and it is convenient to replace samples. Most importantly, polarization generally requires a voltage of several thousand volts. , the safety of the experiment is very important, and there is no suitable polarization equipment for laboratory use on the market

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